WO2013078741A1 - Disposable sterile retracting blood taking needle - Google Patents

Disposable sterile retracting blood taking needle

Info

Publication number
WO2013078741A1
WO2013078741A1 PCT/CN2011/084372 CN2011084372W WO2013078741A1 WO 2013078741 A1 WO2013078741 A1 WO 2013078741A1 CN 2011084372 W CN2011084372 W CN 2011084372W WO 2013078741 A1 WO2013078741 A1 WO 2013078741A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
needle
blood
invention
core
collection
Prior art date
Application number
PCT/CN2011/084372
Other languages
French (fr)
Chinese (zh)
Inventor
毛春元
Original Assignee
上海金塔医用器材有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150633Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/14Devices for taking samples of blood ; Measuring characteristics of blood in vivo, e.g. gas concentration within the blood, pH-value of blood
    • A61B5/1405Devices for taking blood samples
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150015Source of blood
    • A61B5/15003Source of blood for venous or arterial blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150259Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150351Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150389Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150473Double-ended needles, e.g. used with pre-evacuated sampling tubes
    • A61B5/150496Details of construction of hub, i.e. element used to attach the double-ended needle to a piercing device or sampling device
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150572Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/15058Joining techniques used for protective means
    • A61B5/150595Joining techniques used for protective means by snap-lock (i.e. based on axial displacement)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150633Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
    • A61B5/150641Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150633Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
    • A61B5/150641Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position
    • A61B5/150656Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position semi-automatically triggered, i.e. in which the triggering of the protective sleeve requires a deliberate action by the user, e.g. manual release of spring-biased extension means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150732Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150885Preventing re-use
    • A61B5/150916Preventing re-use by blocking components, e.g. piston, driving device or fluid passageway
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/153Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A61B5/1535Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes comprising means for indicating vein or arterial entry
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150541Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
    • A61B5/150549Protectors removed by rotational movement, e.g. torsion or screwing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150541Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
    • A61B5/150564Protectors removed by pulling or pushing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/15058Joining techniques used for protective means
    • A61B5/150587Joining techniques used for protective means by friction fit
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/15058Joining techniques used for protective means
    • A61B5/150603Joining techniques used for protective means by rotation, e.g. bayonet or screw
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150694Procedure for removing protection means at the time of piercing
    • A61B5/150717Procedure for removing protection means at the time of piercing manually removed

Abstract

A disposable sterile retracting blood taking needle consists of an end cover (10), a protective sleeve (11), a needle guard (12), a needle (13), a needle hub (14), a core rod (15), an outer sleeve (16), a piston (17), a sheath (18) and a blood taking needle (19). The piston (17) is arranged in a clamping groove of the core rod (15); the outer sleeve (16) is sleeved on the core rod (15) and the piston (17); the piston (17) and the outer sleeve (16) are in interference fit; inner holes of the needle (13), the needle hub (14), the core rod (15) and the blood taking needle (19) are communicated; the core rod (15) and the outer sleeve (16) are made of transparent materials; blood backflow is judged by blood flowing in a passage in the core rod (15); and after blood taking is completed, a medical worker presses a blood taking position of the blood taking needle (19) with one hand, presses the outer sleeve (16) with a finger of the other hand and pulls the needle guard (12) to move back with other fingers of the other hand, so that a snap ring (113) of the core rod (15) enters a slot (144) of the outer sleeve (16) and is locked, and the blood taking needle (19) is hidden in a cylinder of the outer sleeve (16), and thus, the aim of safety is fulfilled.

Description

Disposable Sterile safety lancet retraction FIELD

The present invention relates to a lancet, especially after the completion of the blood collection needle can be retracted into the coat to hide, not stabbed once again to achieve security purposes, belongs to a retraction safety lancet.

Background technique

Lancet is currently one of the world's largest-selling medical devices. However, the concern is that the current world due to needle breakage or hospital staff caused by improper operation of the blood collection needle personal injury accident, millions of people each year. The American Medical Association released statistics show that only about 100 million people the United States health care workers accidentally blood collection needle injury accidents per year, of which at least a thousand people will be attached to the needle hepatitis B virus, hepatitis C virus and HIV infection. Because every time blood collection needles fracture was stabbed and emergency medical treatment costs of patients was $ 3000 per capita.

General medical risks lancet lead to medical risks of not less than syringes, we will see the blood on the security legislation in the near future. In 2000, President Clinton signed a legal document, "Federal Security syringe method." The bill provides that in future US clinical community should adopt general product safety syringe syringe to replace a security risk as much as possible.

Domestic and foreign companies have invested heavily in research and development of medical devices safe blood collection, safety lancets are currently on the market very much, blood safety situation has been opened, but to fully promote safe blood have a long way to go. At present, these safety blood collection equipment on the market there are many shortcomings: One is the high cost of production; the other is a complex production process; the third is difficult to guarantee the quality of production; The fourth is the cumbersome operation of medical personnel; Fifth is difficult to guarantee the security features .

To solve this problem the invention uses design thinking to break through the traditional object of the present invention is to overcome the equipment available on the market of blood products many shortcomings, the present invention enables low cost production process is simple, quality is guaranteed, simple operation of medical personnel, safety function is guaranteed.

SUMMARY

One embodiment the invention:

The present invention consists of an end cap, the protective sleeve, the needle sheath, needle, needle holder, the stem, the outer piston, a sheath, the lancet composition.

The present invention solves the technical problem of one aspect: the lancet mounted in the pinhole, to achieve the lancet glue application the core rod fastened in the gum hole; column installed in the groove of the piston cylinder, the piston of the two slot end face and the end face stuck end face slot, the slot post is cylindrical interference fit; a piston cylinder mounted to the front end, the piston ring and cylinder discharge rib interference fit, the stem attached to the barrel core pin in coat is a transition fit, only the collar moves to ramp detent position, the collar and the latching ramp is an interference fit, the stem of the cylinder head is passing through the opening of the casing; a needle, needle hub, stem, blood between the bore of the needle is penetrating.

The present invention solves the technical solution Problem II is: a core rod by the catheter and the joint composition; catheter is a soft material pipe; cone catheter and needle hub, the joint cone is connected to an interference fit, may be employed FIG. slot structure 10 in the mouthpiece of the interference fit connection; between the needle, the needle hub, a catheter, connector, the bore is a through the lancet.

The present invention solves the technical solution Problem three is: after the rod segments have cylindrical and cone, cone inside the cylindrical; middle stem columnar, ribs, channels, passages in the inner cylinder, the bead on the cylinder ; anterior portion of the stem collar, the end face slot, groove column, the end face slot, the pinhole, gum hole cylinder head; mandrel before and partly after the bore is a through; bead ring around the piston the cylinder, the cylinder bore in the center; the coat section has a guide hole, the end face, hands, latching ring, the diameter of the latching ramp, latching ring is smaller than the barrel diameter; the middle of a hollow cylindrical barrel; preceding a step ,? L; the rear end of the outer rib grooves and, to the collar groove, and a latching ramp limit movement of the front and rear rib.

Technical Solution The present invention solves the technical problem is four: core rod and jacket are made of a transparent material, the stem through the blood flowing in the passage back to the blood is determined.

Technical Solution The present invention solves the technical problem is five: the piston and the jacket surface coating with a lubricating silicone oil.

The present invention solves the technical problem aspect is six: core rod, coat the piston, a sheath, with the blood collection needle assembly, the blood collection bag and the core rod to achieve blood conduit connection.

The invention according to two:

The present invention consists of an end cap, the protective sleeve, the needle guard, the needle, needle hub, the core rod, coat, jacket, composed of the lancet.

The present invention solves the technical problem of one aspect: the stem hole of a column mounted on the hub, the outer jacket of the core rod, the bead core rod mounted within the outer slot.

The present invention solves the technical solution Problem II are: card table card interference fit, the channel and the needle gum hole constituent stem through hole on the convex pillar; bead core rod is connected to the projecting pillars, columns, card sets , slot, card table, and table card slot on both sides of the card table, and a binding station at the card table card beveled transition of the column. Technical Solution The present invention solves the technical problem is three: the jacket is a hollow groove of the hollow cylinder wall distributed, card sets hollow cylinder wall ribs grow.

BRIEF DESCRIPTION

FIG 1 is a blood collection embodiment of the present invention the security structure 3

FIG 2 is a schematic outline safe hemostat of the present invention.

FIG 3 is a rear safe hemostat of the present invention retracted configuration

FIG 4 is an embodiment of the present invention is safe blood stem

FIG 5 is an embodiment of the present invention is safe blood stem 3D stereoscopic ^

FIG 6 is a scheme of the present invention, the outer safe hemostat

FIG. 7 is an embodiment of the present invention, the outer safe blood 3D stereoscopic ^

FIG 8 is an embodiment of the present invention, the security protection structure of blood

9 is an embodiment of the present invention FIG safe hemostat piston ^

FIG 10 is a blood collection embodiment of the present invention a safety needle holder

FIG 11 is (after improved core bar) embodiment of the present invention, a safe hemostat

FIG 12 is a blood collection embodiment of the present invention, two safety structure

FIG 13 is a rear two safety blood collection embodiment of the present invention retract;

FIG 14 is a diagram Α-Α 15 is a schematic cross-sectional view of the structure.

FIG 15 is a schematic top view of FIG. 12.

FIG 16 is a blood collection embodiment of the present invention, two needle safety seat junction;

FIG 17 is a two embodiment of the present invention is safe hemostat stem 3D stereoscopic ^

FIG 18 is a two embodiment of the present invention is safe hemostat stem

FIG 19 is a two embodiment of the present invention, the outer safe hemostat

FIG 20 is a diagram Β-Β 22 a schematic cross-sectional view of the structure.

FIG 21 is a two embodiment of the present invention, the outer safe hemostat 3D stereoscopic ^

FIG 22 is a schematic plan view of FIG. 19.

The various parts, and parts number:

The invention according to a: 10. 12. The end cap 11. The protective sleeve 14. The needle guard 13. The needle hub 15. The stem 17 of the piston 16. The outer sheath 19. The puncture needle 18. 111. 112. The channel 113 cone. card slot 114. The ring 1 the end face 15. The end face of the slot 117. The groove column 116. The pinhole aperture 119. The cylinder head 118. The adhesive bead 120. The end surface 121. a guide hole 122. 123. 124. hands latching ring 125 . latching ramp 126. 127. the stepped cylindrical bore 129. A threaded hole 128. 130. 131. A cylindrical bore 132. the end surface of the bead ring 133. 134. 135. studs cone opening 137. the rubber sleeve 136. the hole 138. pinhole conduit 140. 139. 141. cylindrical fitting cylinder 143. The cylinder 142. 144. 145. rib grooves

The invention according to two: 20. 21. The end cap sleeve 23. The protective sleeve 22. The needle 24. The needle hub 25. The sheath 27. The outer sleeve 26. The core rod 28. The lancet needle plastic bore 211. 212. 213. Column 214 holes . pillar projection 216. The post rib 215. 217. 219. station channel card 218. card slot 220. The glue station 221. The pin hole 222. The groove wall 223. The card slot 224. station

Further description of the drawings:

Conventional blood collection needles are well-known products, the same place the conventional lancet structure, the assembly relationship, assembly position, using the methods briefly described in the following description, the only important point of the present invention will be described, expression of the structural drawings clearly below will give a brief description.

One embodiment the invention:

The present invention consists of an end cap 10, protective cover 11, a needle hub 12, needle 13, needle hub 14, the core rod 15, the jacket 16, piston 17, jacket 18, the lancet 19 composition.

Lancet 19 is mounted in the pin holes 117, glue application to achieve the lancet 19 is connected to the core rod 15 secured within the bore 118 gel; column 115 is fitted in the groove 131 of the piston within the cylinder 17, both end surfaces of the piston 133 of the card 17 the end face grooves 114 and slots 116 end face jammed, the cylindrical column 131 and the groove 115 is an interference fit; a piston 17 mounted to the front end of the cylinder 126, the discharge ring rib 132 and the cylindrical piston 17 to achieve an interference fit 126, the piston 17 and the jacket surface coating 16 of the lubricating oil, to ensure the slip thrusts stability; core rod 15 mounted in the inner cylinder 131, the core rod 15 in the jacket 16 in a transition fit, 125 positions only the collar 113 moves to the latching ramp, the snap ring 113 and the card bit ramp 125 is an interference fit, the stem 15 is a cylindrical bit 119 through the hole 128 of the outer sleeve 16; needle 13, needle hub 14, the core rod 15, between the inner hole 19 of puncture needle is penetrating.

The protective cap 10 to cover an end portion of the sleeve 11; 14 mounted in a needle hub within the protective housing of the screw hole 12911; needle 13 mounted in a pinhole 138; adhesive glue applied within the glue implemented hole 137; needle guard 12 sets the needle 13 and the mouthpiece 136; cone head 15 of the stem sleeve 111 implemented on a mating cone 134, a solid adhesive glue; cone jacket 18 sleeve 111.

The core rod after the 15 section has a cylindrical 141 and cone 111, cone 111 in inner cylinder 141; the core rod 15 in the middle with a cylinder 142, the ribs 120, passage 112, passage 112 in the cylinder 142, the ribs 120 on the cylinder 142 ; stem collar 15 has a front section 113, the end face slot 114, the slot column 115, the end face slot 116, pinhole 117, glue hole 118, cylinder head 119; front between the core rod 15, the through-holes are within the of.

The piston ring 132 rib 17 is wrapped around the cylinder 143, 131 is placed within central cylindrical bore 143. After the jacket 16 has a guide hole section 121, end surfaces 122, 123 by hand, the latching ring 124, detent ramp 125, the latching ring 124 is smaller in diameter than the cylinder 126; the middle of a hollow cylindrical barrel; preceding a step 127, holes 128; 144 and the outer rear end of the rib grooves 145, the lancet 113 after use is drawn into the snap ring groove 144, the inclined surface 125 and latching ribs 145 which limits movement back and forth.

The core rod 15 may also be provided by the catheter 139 and the joint structure 140 composed of a soft material, the catheter tube 139, so that the rear end of the lancet swingably sometimes does not cause the blood collection needle swing; catheter hub 139 with a tapered head 134 14 , cone joint 140 is connected to an interference fit, the slot structure 10 mouthpiece 136 interference fit connection may also be employed; needle 13, needle hub 14, catheter 139, connector 140, internal bore 19 of the lancet inter is penetrated.

The invention according to two:

The present invention consists of an end cap 20, protective cover 21, a needle hub 22, needle 23, needle hub 24, the stem 25, the outer sleeve 26, the sheath 27, the lancet 28 composition. The present invention is a further embodiment of the invention on the basis of.

The core pole 25 mounted within the bore 213 of needle hub 24 212, the outer sleeve 26 on the stem 25, the ribs 25 of the stem 215 mounted within the slot 26 of the outer sleeve 224; 223 cards in the card table pillar projection 214 the interference fit, the outer sleeve 26 after the completion of blood collection and core rod 25 relative movement, until the card lock table 223 into the slot 219; 217 and the needle passage hole 221 gel composition of the core rod 25 through hole.

The stem 215 is connected to the ribs 25 on the convex pillars 214, pillars 216, card table 218, slots 219, 220 on the card table, card table 218 and table 220 on both sides of the card slot 219, the card and the card table 218 table junction 220 with the post 216 is transition ramp.

Jacket 26 is a hollow cylinder, the slot 224 located in the hollow cylinder wall, the card table 223 is a hollow cylinder wall ribs grow.

detailed description:

One embodiment the invention:

In use, the medical personnel to open the single package of the present invention taken safety lancet, unplug the cap 11, the sheath 18 and then pulled out, medical personnel can step by conventional blood collection needle blood collection operation, the core rod 15 and the outer 16 are of a transparent material, through a passage 15 in the stem 112 determines whether the blood back to the blood collection needle 19 correctly whether the bar into the vessel. Then the blood collection needle is inserted into the sleeve 12 so that the needle 13 enters Mining to intravascular blood. After the blood fills the lumen of blood unplug the blood collection, blood will continue To continue the blood collection needle is inserted into the sleeve 12 so that the needle 13 into the realization of blood collection tube. After the completion of blood collection, medical hand on a position of the lancet 19 of blood, a master hand fingers hold the sheath 16, pulling the needle several other means female housing 12 into the groove 144 to the back, the core rod 15, the snap ring 113 lock core rod 15 relative to the outer sleeve 16 is moved, the blood collection needle 19 is hidden in the inner cylinder 126 of the outer sleeve 16, i.e., to achieve the purpose of security. Health care workers to be thrown into the trash.

Blood and blood before the blood collection needle, the outer sleeve 16 and the core rod relative movement does not occur resistance 15 and the jacket 16 from the piston 17 opposite the sliding frictional force.

The core rod 15, the jacket 16, piston 17, jacket 18, blood collection needle 19 are assembled together, the core rod 15 is connected to the blood collection bag to achieve blood conduit.

The invention according to two:

In use, the medical personnel to open the single package of the present invention taken safety lancet, unplug the cap 21, the sheath 27 and then pulled out, medical personnel can step by conventional blood collection needle blood collection operation, the outer sleeve 26 and core rod 25 is of a transparent material, through a passage 25 in the stem 217 determines whether the blood back to the blood collection needle 28 correctly whether the bar into the vessel. Then the blood collection needle is inserted into the sleeve 22 so that the needle 23 into the blood collection tube to achieve. After the blood fills the lumen of blood unplug the blood collection, blood will continue To continue the blood collection tube is inserted within the needle guard so that the needle enters the 2223 Mining to intravascular blood. After the completion of blood collection, medical hand on a blood collection needle 28 in position, a master hand fingers hold the outer sleeve 26, the parent pulls several other needle hub means 22 to the back 25 of the core table 223 into the card slot 219 the core locking lever 25 moves relative to outer sleeve 26, needle 28 is hidden in the blood collection tube 26 of the outer sleeve, i.e., to achieve the purpose of security. Health care workers to be thrown into the trash.

Before blood collection and blood collection needle, the outer sleeve 26 and the core rod 25 relative to the resistance to movement does not occur from the rib 25 of the stem 215 and the slot 224 with the outer sleeve 26 and the stem 25 of the pillar projection 214 and the jacket 26 Taiwan 223 card with frictional resistance.

The above description and the embodiments column merely illustrative use of the present invention, not to limit the present invention, the relevant field of the art, without departing from the spirit and scope of the present invention, can make various changes and modifications, all equivalent technical solutions should belong to the scope of the invention shall be defined by the claims.

Claims

Rights request
1. A disposable sterile lancet retracted safety, the present invention consists of the end cap (10), protective sleeve (11), a needle hub (12), pin (13), the needle hub (14), the stem ( 15), the jacket (16), a piston (17), the sheath (18), a blood collection needle (19) composition; wherein: said lancet (19) mounted within the pin holes (117), the glue application achieve lancet (19) and the stem (15) within the fastening hole gel (118); an inner cylinder (131) grooves column (115) mounted on the piston (17), the piston (17) in both end faces (133 ) is the end face slot (114) and the end face slot (116) jammed, the cartridge (131) and a column groove (115) is an interference fit; a piston (17) mounted on the front end of the barrel (126), the piston (17) jetting rib ring (132) and the cylinder (126) to achieve an interference fit, the stem (15) mounted in the barrel (131), the stem (15) are a transition fit in the housing (16), only the snap ring (113 ) moves to the latching ramp (125) position, the collar (113) and the latching ramp (125) is an interference fit, the stem (15) of the cylinder head (119) is an aperture through the housing (16) ( the inner needle (13), the needle hub (14), stem (15), a blood collection needle (19); 128) Inter is penetrated.
2. The disposable according to claim 1 using a sterile lancet retracted safety, characterized in that: said stem (15) by a conduit (139) and the joint (140) composition; conduit (139) is a soft material tube; conduit (139) and the needle hub (14) of the cone (134), the joint (140) connected to the cone for the interference fit, it may also be employed in the mouthpiece (136) of the slot structure of FIG. 10 to achieve interference fit connection; pin (13), the needle hub (14), the conduit (139), the joint (140), inter-bore puncture needle (19) is penetrating.
The disposable according to claim 1 using a sterile lancet retracted safety, wherein: (15) after the stem section has a cylinder (141) and a cone (111), cone (111 ) in the inner cylinder (141); stem (15) in the middle with a cylinder (142), ribs (120), passage (112), passage (112) in the inner cylinder (142), ribs (120) in the cylinder ( 142); stem (15) with a collar front stage (113), the end face slot (114), a column groove (115), the end face slot (116), a pinhole (117), glue hole (118), a cylindrical head (119); prior to the core rod (15) and partly, after the penetrating holes are; a piston (17) of the ring rib (132) wrapped around the cylinder (143), the bore (131) is placed in a cylindrical (143) center; the jacket (16) of a guide hole (121), end surfaces (122), hands (123), the latching ring (124), the latching ramp (125), the latching ring (124) smaller diameter than the cylinder (126); the middle of a hollow cylindrical barrel; preceding a step (127),? L (128); the rear end of the outer grooves (144) and a rib (145), the collar (113) to the slot (144), the latching ramp (125) and a rib (145) to limit its longitudinal movement.
4. The disposable according to claim 1 using a sterile lancet retracted safety, characterized in that: said stem (15) and the housing (16) is made of a transparent material, through the core rod (15) in blood channel (112) back to the blood flowing through the determination.
The disposable according to claim 1 using a sterile lancet retracted safety, characterized in that: said piston (17) and the jacket (16) of a silicone oil with a lubricating surface coating.
6. The disposable according to claim 1 using a sterile lancet retracted safety, characterized in that: said core rod 15, the jacket 16, piston 17, jacket 18, blood collection needle 19 are assembled together, the stem blood collection bag 15 is connected to the catheter to achieve blood.
A disposable sterile lancet is retracted, the present invention consists of an end cap (20), protective sleeve (21), a needle hub (22), the needle (23), the needle hub (24), the stem (25 ), the jacket (26), the sheath (27), a blood collection needle (28) composition; characterized in that: said stem (25) of the column (213) mounted within the bore (212) of needle hub (24), jacket (26) on a core rod (25), the stem (25) of the ribs (215) mounted on the (224) housing (26) of the slot.
The disposable according to claim 6 using a sterile lancet retracted safety, characterized in that: said card table (223) card interference fit, the channel (217) on the convex pillar (214) and plastic needle hole (221) constituting the core rod (25) through hole; a core rod (25) of the ribs (215) connected to the pillar projection (214), a column (216), a card table (218), slot (219) , on the card table (220), on both sides of the card table (218) and a card table (220) in the slot (219), the card table (218) and a card table (220) and column (216) at the junction beveled transition.
9. The use of claim 6 disposable sterile lancet retracted safety, characterized in that: said housing (26) is a hollow cylinder, the slot (224) located in the wall of the hollow cylinder, a card table ( 223) is empty
PCT/CN2011/084372 2011-12-01 2011-12-21 Disposable sterile retracting blood taking needle WO2013078741A1 (en)

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CN201110393465.4 2011-12-01

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US14356764 US9314199B2 (en) 2011-12-01 2011-12-21 Disposable sterile retracting blood taking needle

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102525488B (en) 2011-12-01 2013-09-25 上海金塔医用器材有限公司 Disposable sterile retraction safety blood sampling needle
CN103815919B (en) * 2014-03-20 2015-12-30 威海鸿宇医疗器械有限公司 Security-type blood collection needle needle holder
CN104188669B (en) * 2014-09-18 2016-05-18 广东海鸥医疗器械股份有限公司 A needlestick prevention disposable lancet
CN104887250B (en) * 2015-04-28 2018-04-10 顶医疗科技(昆山)有限公司 A disposable blood collection safety needlestick prevention device
CN105596013A (en) * 2016-02-06 2016-05-25 湛江健力源医疗用品有限公司 Shrinkage safety blood collecting needle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4935012A (en) * 1988-06-10 1990-06-19 George R. Magre Safety device for medical needles
US5011479A (en) * 1989-10-06 1991-04-30 Son Le Cover and connector for hypodermic needle
CN1089511A (en) * 1992-10-28 1994-07-20 汉福特·N·小洛克伍德 Hypodermic needle safety device with sliding outer cover
CN1383899A (en) * 2001-05-04 2002-12-11 贝克顿迪肯森公司 Passively-driven safe needle
US20030050608A1 (en) * 2001-09-12 2003-03-13 Robert Brown Passive fluid collection device
CN101361661A (en) * 2008-08-01 2009-02-11 徐昊华 One-time operation safe vacuum blood-sample acquisition needle
US20100331726A1 (en) * 2009-06-29 2010-12-30 Tyco Healthcare Group Lp Medical Device with Incorporated Disinfecting Wipe and Method of Using Same

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4631057A (en) * 1985-12-17 1986-12-23 Dolores A. Smith Shielded needle
US4731059A (en) * 1986-10-14 1988-03-15 Medical Safety Products, Inc. Combination needle shield/needle guard device positively locked onto detachable needle assemblies for an evacuated blood collection system and a hypodermic syringe
US4693708A (en) * 1986-10-16 1987-09-15 Wanderer Alan A Combination needle shield/needle guard device for a hypodermic syringe with a permanently attached needle
US4758231A (en) * 1987-04-27 1988-07-19 Habley Medical Technology Corporation Shielded safety syringe
US5066287A (en) * 1988-07-27 1991-11-19 Ryan Medical, Inc. Safety multiple sample rear adapter assembly
US4923446A (en) * 1988-04-14 1990-05-08 Page Mary J Shield for devices capable of penetrating skin
US5057087A (en) * 1989-04-24 1991-10-15 Harmon James E Hypodermic needle safety system
US5407431A (en) * 1989-07-11 1995-04-18 Med-Design Inc. Intravenous catheter insertion device with retractable needle
WO1993011816A1 (en) * 1991-12-09 1993-06-24 Square One Medical Rotary lock for needle sheaths
US5338310A (en) * 1992-02-06 1994-08-16 Becton, Dickinson And Company Needle device having safety indication features
CA2099317C (en) * 1992-07-08 1998-08-18 Howard S. Berger Safety syringe with i.v. port access
GB9306009D0 (en) * 1993-03-23 1993-05-12 Ncr Int Inc Sheet handing apparatus
US5423758A (en) * 1993-12-16 1995-06-13 Shaw; Thomas J. Retractable fluid collection device
US5687740A (en) * 1995-06-29 1997-11-18 Becton, Dickinson And Company Needle holder assembly including sleeve of thermoplastic elastomer
US5647849A (en) * 1995-09-27 1997-07-15 Becton, Dickinson And Company Self-contained safety syringe
ES2408970T3 (en) * 1996-02-27 2013-06-24 B. Braun Melsungen Ag Tip guard for hypodermic needles water
US5718239A (en) * 1996-06-21 1998-02-17 Becton, Dickinson And Company Method of activating a needle assembly having a telescoping shield
CN2373045Y (en) * 1999-02-10 2000-04-12 王洪军 Disposable used sterile hemostix
US6537257B1 (en) * 1999-11-01 2003-03-25 Abraham Wien Syringe with reciprocating, leak-proof needle guard
JP2003520650A (en) * 2000-01-25 2003-07-08 オロブソン、グドマー Syringe device
US6471677B2 (en) * 2000-04-06 2002-10-29 Gem Plastics, Inc. Fluid collection device with protective shield
US6533760B2 (en) * 2000-05-02 2003-03-18 Becton, Dickinson And Company Flashback blood collection needle
CN2484969Y (en) * 2001-06-05 2002-04-10 汪贤宗 Safety device for syringe needle
EP1350536A1 (en) * 2002-03-07 2003-10-08 Sergio Restelli Safety butterfly needle for venipuncture with needle cover device
US6989001B2 (en) * 2004-05-28 2006-01-24 Huang-Chuan Chen Breakable syringe with a safety sleeve
US20060229554A1 (en) * 2005-03-28 2006-10-12 Intai Technology Corp. Mechanism for tilting retractable needle
US7947020B2 (en) * 2005-05-09 2011-05-24 Safeshot Technologies, Llc Retractable safety syringe
JP2008043583A (en) * 2006-08-18 2008-02-28 Toyo Univ Fine syringe needle
US8888713B2 (en) * 2007-03-07 2014-11-18 Becton, Dickinson And Company Safety blood collection assembly with indicator
KR100806017B1 (en) * 2007-11-21 2008-02-26 송경진 Reversible resin needle set for one time use
WO2010047963A1 (en) * 2008-10-22 2010-04-29 Shaw Thomas J Universal syringe with retractable needle
CN201735028U (en) * 2010-06-17 2011-02-09 昆山和兴医疗科技有限公司 Safe self-destruction injection syringe with locking structure
CN102160793B (en) * 2011-03-08 2012-12-26 成都普什医药塑料包装有限公司 Dripping-proof backflow-blood-observable venous blood taking needle
CN102525488B (en) 2011-12-01 2013-09-25 上海金塔医用器材有限公司 Disposable sterile retraction safety blood sampling needle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4935012A (en) * 1988-06-10 1990-06-19 George R. Magre Safety device for medical needles
US5011479A (en) * 1989-10-06 1991-04-30 Son Le Cover and connector for hypodermic needle
CN1089511A (en) * 1992-10-28 1994-07-20 汉福特·N·小洛克伍德 Hypodermic needle safety device with sliding outer cover
CN1383899A (en) * 2001-05-04 2002-12-11 贝克顿迪肯森公司 Passively-driven safe needle
US20030050608A1 (en) * 2001-09-12 2003-03-13 Robert Brown Passive fluid collection device
CN101361661A (en) * 2008-08-01 2009-02-11 徐昊华 One-time operation safe vacuum blood-sample acquisition needle
US20100331726A1 (en) * 2009-06-29 2010-12-30 Tyco Healthcare Group Lp Medical Device with Incorporated Disinfecting Wipe and Method of Using Same

Also Published As

Publication number Publication date Type
GB2511243B (en) 2018-02-14 grant
CN102525488B (en) 2013-09-25 grant
CN102525488A (en) 2012-07-04 application
GB201409935D0 (en) 2014-07-16 grant
US20150105693A1 (en) 2015-04-16 application
GB2511243A (en) 2014-08-27 application
US9314199B2 (en) 2016-04-19 grant

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